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Finding the Third Proportional to 16,590 and 36,417

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Solution

The third proportional to 16,590 and 36,417 is: 79,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,590 : 36,417 = 36,417 : x
  2. Step 2: Convert to fraction form
    16,590/36,417 = 36,417/x
  3. Step 3: Cross multiply
    16,590x = 36,417 × 36,417
  4. Step 4: Simplify right side
    16,590x = 1,326,197,889
  5. Step 5: Solve for x
    x = 1,326,197,889/16,590
  6. Step 6: Final answer
    x = 79,939.60

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.